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Gr. 7- 7.5 Different Ways to Express Probability

Last updated almost 5 years ago
13 questions
1

Which color do you think the spinner will land on in the image above?

Spin the wheel 10 times and record how many times the spinner lands on each color.

1

How many times did the spinner land on pink?

1

How many times did the spinner land on blue?

1

How many times did the spinner land on purple?

A Probability Scale is a numerical value from 0 to 1 that measures the likelihood of the event(s).

Drag the movable points below to display how likely it was for the spinner to land on each color.

1

Tim and Angela played 40 rounds with a one or more of the spinners above.

The table displays their results.

Which spinners did they most likely use?

(Select all)


Probability is a type of ratio where we compare how many times an outcome can occur compared to all possible outcomes.

The Probability of an Event can be written as a ratio, decimal, or percent.

1

When you flip a coin there are only two possible outcomes. (Heads or Tails)

Say you flip a coin 10 times, theoretically Heads will appear 5 times.

So the theoretical probability of flipping Heads is 1:2, ___ /___, or ______%.

[Separate your answers with commas & Simplify Fractions]

Theoretical Probability is what is expected to happen based on the possible outcomes, assuming equally likely events.

"What you expect to happen, but isn't always the case."

Experimental Probability is the result of an experiment or simulation after a large number of times.

"The probability determined from the results of an experiment."

Roll the die ten times and record the numbers in the table.

1st: Click "Reset" and count the number you see for Trial #1
2nd: press "Roll" to view Trials 2 - 10.
1

How many times did the #1 occur?
What is the Exp. Prob. Fraction?

1

How many times did the #2 occur?
What is the Exp. Prob. Fraction?

1

How many times did the #3 occur?
What is the Exp. Prob. Fraction?

1

How many times did the #4 occur?
What is the Exp. Prob. Fraction?

1

How many times did the #5 occur?
What is the Exp. Prob. Fraction?

1

How many times did the #6 occur?
What is the Exp. Prob. Fraction?

1

What do you think will happen to the Experimental Probability if you were to increase the number of times you rolled the die?